SpringerLink (Online service), Papantonopoulos, L., Siopsis, G., Tsamis, N., & Calcagni, G. (2013). Quantum Gravity and Quantum Cosmology. Springer Berlin Heidelberg Imprint Springer.
芝加哥风格引文SpringerLink (Online service), Lefteris Papantonopoulos, George Siopsis, Nikos Tsamis, 与 Gianluca Calcagni. Quantum Gravity and Quantum Cosmology. Berlin Heidelberg: Springer Berlin Heidelberg Imprint Springer, 2013.
MLA引文SpringerLink (Online service), et al. Quantum Gravity and Quantum Cosmology. Springer Berlin Heidelberg Imprint Springer, 2013.
警告：这些引文格式不一定是100％准确.